comedi comedi2: c6xdigio: I/O port conflict (0x4f27,3)
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Unexpected driver unregister!
WARNING: CPU: 0 PID: 5185 at drivers/base/driver.c:270 driver_unregister+0x8e/0xa0 drivers/base/driver.c:270
Modules linked in:
CPU: 0 PID: 5185 Comm: syz.5.139 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:driver_unregister+0x8e/0xa0 drivers/base/driver.c:270
Code: e8 47 bc 00 fd 48 89 df 5b 41 5e 41 5f e9 fa 5c ff ff e8 e5 9d 7c fc eb 05 e8 de 9d 7c fc 48 c7 c7 60 c9 02 8b e8 92 c8 48 fc <0f> 0b 5b 41 5e 41 5f c3 00 00 cc cc 00 00 cc cc 00 00 41 57 41 56
RSP: 0018:ffffc90004f9fa60 EFLAGS: 00010246
RAX: 498e35df90dac800 RBX: ffffffff8dc2bea0 RCX: 0000000000080000
RDX: ffffc9001c000000 RSI: 0000000000006edc RDI: 0000000000006edd
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffff520009f3edd
R10: fffff520009f3edd R11: 1ffff920009f3edc R12: ffff88814cc8e038
R13: ffffffff8dc2bdf0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f92707c86c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c4364b9 CR3: 000000007803e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 comedi_device_detach_locked+0x16e/0x710 drivers/comedi/drivers.c:206
 comedi_device_detach drivers/comedi/drivers.c:214 [inline]
 comedi_device_attach+0x5c9/0x700 drivers/comedi/drivers.c:1010
 do_devconfig_ioctl drivers/comedi/comedi_fops.c:868 [inline]
 comedi_unlocked_ioctl+0x5a6/0x1050 drivers/comedi/comedi_fops.c:2173
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f926f98ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f92707c8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f926fbc5fa0 RCX: 00007f926f98ebe9
RDX: 0000200000000180 RSI: 0000000040946400 RDI: 0000000000000003
RBP: 00007f926fa11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f926fbc6038 R14: 00007f926fbc5fa0 R15: 00007ffdecf66358
 </TASK>